GENERIC_601 more or less resembles a Power Macintosh 7200 with a few drivers
thrown in for convenience while keeping the kernel itself smaller than 4MB
with RUMP_NPF_TESTING_=no. This in turn makes it possible to use npf
in a rump kernel for real packet filtering instead of just testing.
no change to default
There are two major changes:
1) All thread context policy is pushed down to the hypercalls.
This is meant to help performance-mongering implementations be
able to control packet scheduling better (e.g. pin down packet
reception to certain physical cores).
2) Generalize linkstr, meaning that the interface can now take an
arbitrary string which is passed to the create() hypercall. This can
be used to map backend device characteristics to the rump kernel
interface instance.
mode should be and what bits in the fpscr can be changed.
Print what features are supported:
vfp0 at cpu0: NEON MPE (VFP 3.0+), rounding, NaN propogation, denormals
While it may seem pointless, it the rouding mode is set to round towards
minus infinity then acos(-1) calculates atan2(sqrt(1.0 - 1.0), -1) the subtract
generates -0.0 which sqrt() preserves.
atan2(-0, -1) is -pi, but acos(-1) is expected to be +pi.
This might 'fix' the test failures seen in some environments, but they
are not failing due to an obvously incorrent x87 rounding mode.
Sigh; one more attempt. This time I'm sure I've verified that the
.pc files contain the right number and that atf-version also outputs
the right stuff... Both with a clean and non-clean obj directory.
Should fix part of the problems reported in PR bin/48624.
Also temporarily print the rounding mode.
I think that acos(-1) is ending up with the wrong sign because the test
is being run with 'round towards -ve infinity' set.
I think it getting set somewhere and causing this test to fail.
The acos() code probably needs fixing - it shouldn't depend on the
round mode like this. But first I want to know if this if the error.
The only way to pass global state from the body to the cleanup is via the
file system.
Fixes leaks of global system resources (in all cases, given that the body
does not by itself clean things up).
